Which of the following is a characteristic of primary immunodeficiency disorders?
Acquired later in life due to environmental factors
Caused by an overactive immune response
Typically present at birth or during early childhood
Easily treatable with antibiotics and antiviral medications
The Correct Answer is C
Explanation: The correct answer is c. Primary immunodeficiency disorders are typically present at birth or during early childhood and are caused by genetic defects that affect the function of the immune system. They are not acquired later in life due to environmental factors.
Incorrect choices:
a. Primary immunodeficiency disorders are not acquired later in life; they are usually genetic and present from birth.
b. Primary immunodeficiency disorders are characterized by a weakened or deficient immune response, not an overactive immune response.
d. Primary immunodeficiency disorders are often not easily treatable with antibiotics and antiviral medications because they result from genetic defects in the immune system.
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Related Questions
Correct Answer is C
Explanation
Explanation: The correct answer is c. Flow cytometry. Flow cytometry is a specialized test used to analyze the different cell types in a blood sample. In the case of SCID, flow cytometry can help identify the absence or severe deficiency of T cells and B cells, which are essential components of the immune system.
Incorrect choices:
a. A tuberculin skin test (TST) is used to detect exposure to tuberculosis (TB) and is not specific to diagnosing SCID.
b. A Western blot test is a type of immunoassay used to detect specific antibodies or antigens in the blood but is not specific to diagnosing SCID.
d. Liver function tests are used to assess the health of the liver and are not specific to diagnosing SCID.
Correct Answer is C
Explanation
Explanation: The correct answer is c. Failure to thrive. SCID is a severe form of immunodeficiency that affects multiple components of the immune system, leading to recurrent and severe infections and failure to thrive in affected infants.
Incorrect choices:
a. Recurrent ear infections are more commonly seen in other types of immunodeficiency disorders, such as selective IgA deficiency.
b. Chronic fatigue and lethargy may be seen in various medical conditions but are not specific to SCID.
d. Persistent joint pain is not a characteristic symptom of SCID. It may be associated with other autoimmune or inflammatory conditions.
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